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Inventor: Murakawa; Toshihiro
Address: Tochigi, JP
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 7552610 |
Thread forming method, thread forming device, and thread forming tool |
June 30, 2009 |
| A thread forming device 10a is provided with a thread forming tool 32 for forming a thread portion 14 at a frame 12, a first motor 38 for controlling to rotate the thread forming tool 32, and a second motor 40 for controlling to extract and retract the thread forming tool 32. Further |
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